Chapter 14 Lymphatic system

What does the right lymphatic duct drain

Right upper quadrant

Lymph movement from lymph capillaries to the blood stream

Capillaries, vessels, nodes, trunks, right LD, thoracic duct, subclavian veins

What is found in lymph

Lymphocytes, macrophages

Interstitial fluid location

Between body cells

When does interstitial fluid become lymphatic

enters lymphatic capillary

How does interstitial fluid form

Blood plasma pushed out of blood capillaries

Factors that affect lymph movement

Muscle contractions, valves, breathing

Lymph nodes function

Filter lymph, activate immune cells

Spleen function

Filters blood, removes damaged blood cells and bacteria

Innate immunity function

Responds quickly to defend against pathogens, present from birth

Adaptive immunity function

Specific, produces antibodies, forms memory B cells

Inflammation funciton

Stops spread of pathogens and infection

Type of immunity T cells provide

Cellular

Type of immunity B cells provide

Humoral

T cell function

Interact directly with antigens to destroy them

B cell function

Produce antibodies that destroy antigens

Naturally acquired active immunity

Exposure to live pathogens

Artificially acquired active immunity

Vaccine

Naturally acquired passive immunity

Antibodies passed mother to fetus

Artificially acquired passive immunity

Injection of gamma globulins or anti serum

Lymphatic vessels function

Carry away excess tissue fluid

Lymph node function

Fight against disease

Lymphatic capillaries function

Collect excess interstitial fluid

Lymphatic trucks function

Drain lymph from lymphatic vessels

Thoracic duct

Drains majority of body

How is lymphatic circulation maintained?

Skeletal muscle contacting, breathing, valves

Major areas of lymph nodes

Cervical, thoracic, axillary, supratrochlear, abdominal, pelvic, inguinal regions

Thymus function

Maturation of T cells

Two mechanisms of defense against pathogens

Innate and adaptive

Signs of inflammation

Redness, swelling, heat, pain